This category contains clouds.
“The Black Mist of Casa Grande Mountain is a strange phenomenon that is often encountered on Casa...Black Mist of Casa Grande Mountain
“The Swirling Basement Thing, alternatively known as the Black Swirling Thing in the Basement...Swirling Basement Thing
“Pollock's Mist was a bizarre cloud-like entity encountered by Robert L. Pollock, a crew member...Pollock's Mist
“The Fountain Cloud was a strange weather phenomenon described in Jerome Clark's book...Fountain Cloud